Finding the Fourth Proportional to 129,353.88, 178,355.66 and 88,537.68
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Solution
The fourth proportional to 129,353.88, 178,355.66 and 88,537.68 is: 122,077.48
Step by Step Solution
- Step 1: Write the proportion equation
129,353.88 : 178,355.66 = 88,537.68 : x - Step 2: Convert to fraction form
129,353.88/178,355.66 = 88,537.68/x - Step 3: Cross multiply
129,353.88x = 178,355.66 × 88,537.68 - Step 4: Simplify right side
129,353.88x = 15,791,195,908.58 - Step 5: Solve for x
x = 15,791,195,908.58/129,353.88 - Step 6: Final answer
x = 122,077.48
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Why These Related Problems?
These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.